GB1137630A - Improvements in axial flow gas turbines - Google Patents

Improvements in axial flow gas turbines

Info

Publication number
GB1137630A
GB1137630A GB4192466A GB4192466A GB1137630A GB 1137630 A GB1137630 A GB 1137630A GB 4192466 A GB4192466 A GB 4192466A GB 4192466 A GB4192466 A GB 4192466A GB 1137630 A GB1137630 A GB 1137630A
Authority
GB
United Kingdom
Prior art keywords
plate
shield
bolts
blades
discs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4192466A
Inventor
Melvin Bobo
Jack Reid Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Priority to GB4192466A priority Critical patent/GB1137630A/en
Priority to FR78055A priority patent/FR1494654A/en
Publication of GB1137630A publication Critical patent/GB1137630A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1,137,630. Gas turbine rotor cooling. GENERAL ELECTRIC CO. Sept. 20, 1966, No. 41924/66. Headings F1G and F1T. The bladed turbine rotor discs 19, 22 in a gas turbine engine are connected by a cylindrical heat shielding member 34 having integral annular sealing plates 40, 45 attached to the respective discs by bolts (41, 46), Figs. 2 to 4 (not shown), passing through holes 58, 52 in the plates. An integral disc 33 stiffens the shield 34. Cooling air is supplied from the engine compressor to the chamber 60 defined by the shield, some of the air then flowing through those holes 58 unoccupied by bolts to an annular channel 55 in plate 40 and thence to passages 57 in the blades 18. The remainder of the air flows in similar manner to passages 54 in the blades 21. The annular channel in plate 45 is bounded on its radially outer side by an annular sealing surface 45' offset from the remainder of the plate to form an axial gap 50 between the plate and the blade roots 21'. The gap 50 and the flexibility of the plate 45 enables axial expansion of the shield 34 to be accommodated. Sealing ribs 66 on the shield co-operate with a honeycomb seal 67 on the stator blades 20. The main driving connection between the discs 19, 22 is through a torque ring 25 and tie bolts (28).
GB4192466A 1966-09-20 1966-09-20 Improvements in axial flow gas turbines Expired GB1137630A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4192466A GB1137630A (en) 1966-09-20 1966-09-20 Improvements in axial flow gas turbines
FR78055A FR1494654A (en) 1966-09-20 1966-09-28 Rotor assembly for gas turbine engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4192466A GB1137630A (en) 1966-09-20 1966-09-20 Improvements in axial flow gas turbines

Publications (1)

Publication Number Publication Date
GB1137630A true GB1137630A (en) 1968-12-27

Family

ID=10421996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4192466A Expired GB1137630A (en) 1966-09-20 1966-09-20 Improvements in axial flow gas turbines

Country Status (1)

Country Link
GB (1) GB1137630A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015200242A (en) * 2014-04-09 2015-11-12 株式会社東芝 Axial flow turbine
US9441639B2 (en) 2013-05-13 2016-09-13 General Electric Company Compressor rotor heat shield
US9453427B2 (en) 2013-10-30 2016-09-27 General Electric Company Systems and methods for purging an aft joint of a last stage wheel
EP3348786A1 (en) * 2017-01-17 2018-07-18 Siemens Aktiengesellschaft Rotor with ring cover and seal plates
CN111828108A (en) * 2020-07-24 2020-10-27 中国科学院工程热物理研究所 Cover plate disc structure for engine turbine disc prerotation system
CN113623014A (en) * 2021-07-22 2021-11-09 西安交通大学 Gas turbine blade-wheel disc combined cooling structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9441639B2 (en) 2013-05-13 2016-09-13 General Electric Company Compressor rotor heat shield
US9453427B2 (en) 2013-10-30 2016-09-27 General Electric Company Systems and methods for purging an aft joint of a last stage wheel
JP2015200242A (en) * 2014-04-09 2015-11-12 株式会社東芝 Axial flow turbine
EP3348786A1 (en) * 2017-01-17 2018-07-18 Siemens Aktiengesellschaft Rotor with ring cover and seal plates
CN111828108A (en) * 2020-07-24 2020-10-27 中国科学院工程热物理研究所 Cover plate disc structure for engine turbine disc prerotation system
CN111828108B (en) * 2020-07-24 2023-02-21 中国科学院工程热物理研究所 Cover plate disc structure for engine turbine disc prerotation system
CN113623014A (en) * 2021-07-22 2021-11-09 西安交通大学 Gas turbine blade-wheel disc combined cooling structure

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